Studied by 19 peopleH
Hydrogen
He
Helium
Li
Lithium
Be
Beryllium
B
Boron
C
Carbon
N
Nitorgen
O
Oxygen
F
Fluorine
Ne
Neon
Na
Sodium
Mg
Magnesium
Al
Aluminium
Si
Silicon
P
Phosphorus
S
Sulfur
Cl
Chlorine
Ar
Argon
K
Potassium
Ca
Calcium
1
Atomic number of Hydrogen
2
Atomic number of Helium
3
Atomic number of Lithium
4
Atomic number of Beryllium
5
Atomic number of Boron
6
Atomic number of Carbon
7
Atomic number of Nitrogen
8
Atomic number of Oxygen
9
Atomic number of Fluorine
10
Atomic number of Neon
11
Atomic number of Sodium
12
Atomic number of Magnesium
13
Atomic number of Aluminium
14
Atomic number of Silicon
15
Atomic number of Phosphorus
16
Atomic number of Sulfur
17
Atomic number of Chlorine
18
Atomic number of Argon
19
Atomic number of Potassium
20
Atomic number of Calcium
Note
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